ABSTRACT

Ethylene glycol (EG) is an industrial chemical with multiple applications in polymers, anti-freeze agents, coolants, desiccants and de-icing fluids. It is prepared mainly from fossil feedstock resources. However, its manufacture from renewable sources like lignocellulosic biomass is attractive from the view points of carbon-neutrality and environmental benefits. A few industries have already ventured or committed to produce biomass-derived EG (bio-EG) on a pilot to demonstration scale. At present bio-EG is more expensive than the EG made from fossil resources. Advances are happening in developing more efficient and selective catalysts for the direct conversion of raw biomass and its hydrolysis products (cellulose and glucose) into bio-EG. This review presents the recent advances in catalysts for producing bio-EG.

摘要

乙二醇 (EG) 是一种工业化学品，在聚合物、防冻剂、冷却剂、干燥剂和除冰液中具有多种用途。它主要由化石原料资源制备。然而，从碳中和和环境效益的角度来看，使用木质纤维素生物质等可再生资源制造其具有吸引力。一些行业已经冒险或承诺在试点到示范规模上生产生物质衍生的 EG (bio-EG)。目前生物EG比由化石资源制成的EG更昂贵。在开发用于将生物质及其水解产物（纤维素和葡萄糖）直接转化为生物 EG 的更高效和选择性催化剂方面正在取得进展。本综述介绍了用于生产生物 EG 的催化剂的最新进展。